Ostrava–Praha line
E681104
The Ostrava–Praha line is a major Czech railway corridor connecting the industrial city of Ostrava with the capital Prague, serving as one of the country’s busiest passenger and freight routes.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Ostrava–Praha line canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7670992 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Ostrava–Praha line Context triple: [Ostrava main railway station, railwayLine, Ostrava–Praha line]
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A.
Prague–Plzeň railway line
The Prague–Plzeň railway line is a major Czech rail corridor connecting the capital city Prague with the industrial and regional hub of Plzeň, serving both passenger and freight traffic.
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B.
Plzeň–Cheb railway line
The Plzeň–Cheb railway line is a major rail route in western Czechia connecting the city of Plzeň with the border city of Cheb and forming part of an important corridor toward Germany.
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C.
Plzeň–Klatovy railway line
The Plzeň–Klatovy railway line is a regional rail route in the Czech Republic connecting the city of Plzeň with the town of Klatovy and serving as an important link in western Bohemia’s rail network.
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D.
Hradec Králové–Jičín railway
The Hradec Králové–Jičín railway is a regional rail line in the Czech Republic connecting the cities of Hradec Králové and Jičín.
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E.
Hradec Králové–Letohrad railway
The Hradec Králové–Letohrad railway is a regional rail line in the Czech Republic connecting the city of Hradec Králové with the town of Letohrad, serving passenger and local transport across eastern Bohemia.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Ostrava–Praha line Target entity description: The Ostrava–Praha line is a major Czech railway corridor connecting the industrial city of Ostrava with the capital Prague, serving as one of the country’s busiest passenger and freight routes.
-
A.
Prague–Plzeň railway line
The Prague–Plzeň railway line is a major Czech rail corridor connecting the capital city Prague with the industrial and regional hub of Plzeň, serving both passenger and freight traffic.
-
B.
Plzeň–Cheb railway line
The Plzeň–Cheb railway line is a major rail route in western Czechia connecting the city of Plzeň with the border city of Cheb and forming part of an important corridor toward Germany.
-
C.
Plzeň–Klatovy railway line
The Plzeň–Klatovy railway line is a regional rail route in the Czech Republic connecting the city of Plzeň with the town of Klatovy and serving as an important link in western Bohemia’s rail network.
-
D.
Hradec Králové–Jičín railway
The Hradec Králové–Jičín railway is a regional rail line in the Czech Republic connecting the cities of Hradec Králové and Jičín.
-
E.
Hradec Králové–Letohrad railway
The Hradec Králové–Letohrad railway is a regional rail line in the Czech Republic connecting the city of Hradec Králové with the town of Letohrad, serving passenger and local transport across eastern Bohemia.
- F. None of above. chosen
Statements (25)
| Predicate | Object |
|---|---|
| instanceOf |
railway corridor
ⓘ
railway line ⓘ |
| connects |
Ostrava
ⓘ
Prague ⓘ |
| country | Czech Republic ⓘ |
| electrification | electric railway ⓘ |
| hasFunction |
freight corridor
ⓘ
intercity connection ⓘ |
| importance | major national corridor ⓘ |
| locatedIn | Czech Republic ⓘ |
| modeOfTransport | rail transport ⓘ |
| partOf | Czech railway network ⓘ |
| passesThrough |
Bohemia
ⓘ
Moravia ⓘ |
| primaryUse |
freight transport
ⓘ
passenger transport ⓘ |
| servesCity |
Ostrava
ⓘ
Prague ⓘ |
| servesRegion |
Central Bohemian Region
ⓘ
Moravian-Silesian Region ⓘ |
| significance | key link between industrial east and capital city ⓘ |
| terminus |
Ostrava
ⓘ
Prague ⓘ |
| trafficLevel | one of the busiest railway routes in the Czech Republic ⓘ |
| uses | standard gauge track ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Ostrava–Praha line Description of subject: The Ostrava–Praha line is a major Czech railway corridor connecting the industrial city of Ostrava with the capital Prague, serving as one of the country’s busiest passenger and freight routes.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.